389210872 has 16 divisors (see below), whose sum is σ = 736230240. Its totient is φ = 192882816.

The previous prime is 389210849. The next prime is 389210879. The reversal of 389210872 is 278012983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389210879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214368 + ... + 216175.

It is an arithmetic number, because the mean of its divisors is an integer number (46014390).

Almost surely, 2^389210872 is an apocalyptic number.

It is an amenable number.

389210872 is a deficient number, since it is larger than the sum of its proper divisors (347019368).

389210872 is a wasteful number, since it uses less digits than its factorization.

389210872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430662 (or 430658 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 389210872 is about 19728.4280164437. The cubic root of 389210872 is about 730.1212483910.

The spelling of 389210872 in words is "three hundred eighty-nine million, two hundred ten thousand, eight hundred seventy-two".